Image processing apparatus and image processing method
US11132806B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2020 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | May 2, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus includes: a memory that stores shape information including a plurality of line segments representing a shape of an object; and a processor. The processor is configured to: detect a plurality of feature lines from an image of the object, generate a target projection line by projecting any of the plurality of line segments over the image of the object, extract a feature line overlapping with a predetermined region based on the target projection line over the image of the object from the plurality of feature lines to generate a set of feature lines, and select a target feature line from the set of feature lines based on gradient information indicating a gradient of pixel values over the image of the object, and calculate a deviation amount between a line segment corresponding to the target projection line and the target feature line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.